Steam (service)
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The home page of the Steam Client for Windows | |
Developer(s) | Valve Corporation |
---|---|
Initial release | September 12, 2003[1] |
Stable release | SteamClient021, Package: 1718305227 (June 13, 2024[±] | )
Preview release | API v020, Package: 1682723851 (April 29, 2023[±] | )
Written in | C++ |
Platform | Microsoft Windows Mac OS X[2] Linux (upcoming)[3] PlayStation 3 (partially)[4] iOS Android |
Available in | 25 languages |
Type | Content delivery Digital rights management Social networking |
License | Steam Subscriber Agreement (Proprietary software) |
Website | store.steampowered.com |
Steam is a digital distribution, digital rights management, multiplayer and communications platform developed by Valve Corporation. It is used to distribute games and related media online, from small independent developers to larger software houses; Valve has also announced plans to expand the service to include non-gaming software in the near future. Steam provides the user with install and automatic management of software across multiple computers, community features such as friends lists and groups, cloud saving, and in-game voice and chat functionality. The software provides a freely-available application programming interface, Steamworks, that developers can take advantage of to integrate many of Steam's functions within their software products, including copy protection, networking and matchmaking, in-game achievements and micro-transactions, and support for user-created content through Steam Workshop. Though initially developed for use on Microsoft Windows, the client has expanded to include a Mac OS X version and a pending port to Linux, and clients with limited functionality on the PlayStation 3 console and for both iOS and Android mobile devices. In addition to be a central hub for gaming software, Valve has created a version of Steam with altered functionality to be used in schools for educational software, including a modified version of Portal 2 for teaching science and critical thinking lessons.
As of August 2012[update], there are over 1500 games available through Steam,[5] and 54 million active user accounts.[6] The concurrent users peak was 5 million on January 2, 2012.[7] Although Valve never releases sales figures, Stardock, former owner of competing platform Impulse, estimated in 2009 that Steam had a 70% share of the digital distribution market for video games.[8]
Client functionality
The Truth of Steam
Steam? What is it?
Steam is a so-called 'platform' for subscribing to computer games. Why is it called a subscription service? The answer is that you pay a once-off fee to steam/valve to maintain the game. If you have no internet connection, then you won't be able to connect to steam's auentication servers which means bad luck to you.
In its first incarnation, it made for one of the most horrid gaming experiences. Countless crashes, connection and 'authentication/ticket' issues, forced updates, etc all made it unusable at one stage or another.
So if it's so bug-ridden and breaks all convention, why do so many people use it? Because of Valve's iron-fisted monopoly! It's like how everybody hates Microsoft, but they still use it. At least with operating systems you have another choice such as Linux. But with steam platform games, such as Counterstrike, you have no choice but to steam it up!
Storefront
Steam includes a digital storefront called the Steam Store, through which users can purchase computer games digitally. Once purchased, software is permanently attached to the user's Steam account (however "gifting" of games to other accounts is possible). Content is delivered using a proprietary file transfer protocol from an international network of servers.[9] Steam sells its products in US$, Euros, pounds sterling, and Roubles based on the user's location.[10] From December 2010, the client also supports the Webmoney payment system, popular in many European, Middle Eastern, and Asian countries.[11] The Steam storefront validates a user's region, and certain titles may be restricted to specific regions due to release dates, game classification, or publisher agreements.
Certain games sold through retail channels can be redeemed as titles for user's library within Steam by entering a product code within the software.[12] For games that incorporate Steamworks, users can purchase redemption codes from other vendors, and redeem these in the Steam client to add the title to their library. Steam offers a framework for selling and distributing downloadable content (DLC) for games.[13]
Players can add non-Steam games to their library, allowing the game to be easily accessed from the Steam client, and provides support, where possible, for the Steam Overlay features. The Steam interface allows for user-defined shortcuts to be added. In this way third-party mods, and games not purchased through the Steam Store, can use Steam features. Valve sponsors and distributes some mods for free,[14] and mods that use Steamworks can also use VAC, Friends, the server browser, and any Steam features supported by their parent game.
During mid-2011, Valve began to offer free-to-play games, such as Global Agenda, Spiral Knights and Champions Online; this was tied in with their move to make Team Fortress 2 a free-to-play title.[15] Valve included support via Steamworks for microtransactions through Steam's purchasing channels for in-game items in these titles, in a similar manner to the existing in-game store for Team Fortress 2. A subsequent addition later that year added the ability to trade both in-game items and "unopened" game gifts between users.[16] Introduced in December 2011, Steam Coupons provides single-use coupons that can be used to discount the cost of an item; Steam Coupons can be provided by developers and publishers to users, and users can trade these Coupons between friends in a similar fashion with gifts and in-game items.[17]
In September 2012, Steam will introduce non-gaming applications that will be sold over the service. Such creativity and productivity applications will be able to access the core functions of the Steamworks API, allowing them to use Steam's simplified installation and updating process, and incorporate features like cloud saving. Developers of non-gaming software will be able to submit their applications to the Steam Greenlight service to judge interest for later inclusion onto the Steam storefront.[18]
Steam Community and Matchmaking
The Steam client, as part of a social network service, allows users to identify friends and join groups through the Steam Community feature.[19] Users can use both text chat and Peer-to-Peer VoIP with other users, identify what their friends and other group members are playing, and, for Steamworks-based games that support it, join and invite friends in multiplayer games. Users can also participate in forums hosted by Valve regarding Steam games. In January 2010, Valve reported that 10 million of the 25 million active Steam accounts had signed up to Steam Community.[20] Each user has a unique page that shows what groups and friends they have, their game library including achievements earned, game wishlists, and other social features; users have the option to keep this information private if desired.[21] In conjunction with the 2012 Steam Summer Sale, user profiles were updated with Badges reflecting the user's participating in the Steam community and past events.[22] The Steam client has been made into an OpenID provider, allowing third-party websites to utilize a Steam user's identity without requiring the user to expose their Steam credentials.[23][24]
Steam, through Steamworks, provides a means of server browsing for multiplayer games that utilizes the Steam Community features, allowing users to create lobbies with friends or members of common groups. Steamworks also provides Valve Anti-Cheat (VAC), Valve's proprietary anti-cheat system, for game servers to automatically detect and report users who are using cheats in online multiplayer games.[25] In August 2012, Valve will start introducing new features into the Community area, such as dedicated hub pages for games that highlight the best user-created content, screenshots, top forum posts, and other details.[26]
Steam collects and reports anonymous metrics of its usage, stability, and performance.[27] With the exception of Valve's hardware survey,[28] most collection occurs without notifying the user or offering an opt-out. Some of these metrics are available publicly, such as what games are being played or statistics on player progress in certain games.[29] Valve has also used information from these statistics to justify implementing new features in Steam, such as the addition of a defragmentation option for game caches.[30] Valve announced on July 15, 2010 that in conjunction with collecting hardware information in Steam's opt-in hardware surveys, they would begin collecting a list of the user's installed software as well.[31]
Steam Overlay
For most games launched from Steam, Steam provides an overlay atop the game that can be accessed by a specific keypress. From the Overlay, the user can access their Steam Community lists and participate in chats, manage selected Steam settings, and access a built-in web browser without having to exit the game.[32] The Overlay also allows for players to take screenshots of the games in process, automatically storing these and allowing the player to review, delete, or share them during their play session or after completion.
Big Picture mode
Steam's "Big Picture" mode was announced in 2011, with public betas starting in September 2012. Big Picture mode optimizes the display of Steam to work on high-definition televisions, allows the user to control Steam via a gamepad or through keyboard and mouse. Newell has stated that Big Picture mode is a step towards a dedicated Steam entertainment hardware unit.[33]
Steamworks
Steamworks is a freely available application programming interface (API) that provides development and publishing tools to game developers, allowing them to take advantage of the Steam client's features.[34][35][35][36] Specifically, Steamworks provides the means for games to integrate with the Steam client, including networking and player authentication tools for both server and peer-to-peer multiplayer games, matchmaking services, support for Steam community friends and groups, Steam statistics and achievements, integrated voice communications, and Steam Cloud support; the API also provides for anti-cheating devices and digital copy management.[36] Steamworks can be combined with a standard Steam distribution agreement, the latter of which gives it advertising space in the Steam store but also provides Valve with a share of revenue.
Steam Workshop
The Steam Workshop provides a way for players of Valve and Steamworks-enabled games to find and obtain user-created content. Users can use in-game or separate tools to construct new levels, game modifications, or other content for games that support the Workshop and then publish them. End users can then subscribe to such content through the Steam client or web site, upon which it will automatically downloaded to the user's computer and integrated with the game. The Workshop was originally used for distribution of new items for Team Fortress 2,[37] the Workshop was revamped in early 2012 to extend support for any game, including mods for The Elder Scrolls V: Skyrim.[38] A May 2012 patch for Portal 2 introduced the ability to share user-created levels enabled by a new map-making tool through the Steam Workshop.[39] Indie games, such as Dungeons of Dredmor, are also able to provide Steam Workshop support for user-generated content.[40] Dota 2 became Valve's third published title available for the Steam Workshop in June of 2012, with features including customizable accessories, skins and voice packs.[41]
Authentication
It is necessary to authenticate every Steam game online, whether purchased via Steam itself or installed via a retail disc, the first time it is played.[42] After the initial authentication, an offline mode allows games to be run without being connected to your Steam account.
Steam Greenlight
Steam Greenlight was announced in July 2012 as a way for Steam users to help promote which games should be added to the service. Developers will be able to submit information about their games, as well as early builds or beta versions, for consideration by users. Users can pledge support for these games, and Valve will help to make top-pledged games available on the Steam service. Greenlight is anticipated to be live in August 2012.[43]
Steam for Schools
Steam for Schools is a limited-functionality version of the Steam software that is available for free for educations and use within classrooms. It is part of an initiative by Valve to support educational uses of games for classroom instruction; its release was alongside free versions of Portal 2 and a standalone Puzzle Maker application to allow educators and students to create and manipulate levels. It features additional authentication security that allows educations to share and distribute content via a similar Steam Workshop-type interface, but blocks such access from students.[44][45]
Supported platforms
Microsoft Windows
Steam was originally released only for Microsoft Windows-enabled computers, but has since expanded to other platforms.
Mac OS X
On March 8, 2010, Valve announced that Steam was in development for Mac OS X.[46] The announcement was preceded by a change in the Steam beta client to support the cross-platform WebKit web browser rendering engine instead of the Trident engine from Internet Explorer.[47][48][49] Prior to this announcement, it teased the release through several images emailed to Mac community and gaming web sites featuring Valve game characters with Apple logos or featured in parodies of old Macintosh advertisements.[50][51] In one case, Valve developed a full video homage to the 1984 Apple Macintosh commercial to announce the availability of Half-Life 2 and its episodes to the service, with some concept images for the video previously used to tease the Mac Steam client.[52]
Originally planned for release in April 2010, Steam for Mac OS X was launched worldwide on May 12, 2010, following a successful beta period.[53] In addition to the Steam client, several features were made available to developers to take advantage of a cross-platform Source engine and platform and network capabilities using Steamworks.[54] Through SteamPlay, the Mac OS X client allows players who have already purchased compatible products in the Windows version to re-download the Mac versions at no cost, allowing them to continue to play the game on the other platform; however some third party titles may require the user to purchase again to gain the cross-platform functionality.[55] The Steam Cloud is cross-platform compatible. Multiplayer games can also be cross-compatible, allowing Windows and Mac players to play with each other.[46]
Upon launch, over 50 games, most supporting the SteamPlay feature, were available for the client. As part of the launch, Valve offered both PC and Mac users to download Portal for free during the first two weeks of launch.[56][57] For some weeks after the Mac client launch, Valve expanded the catalog of offerings for the service on a weekly basis, with each week highlighting a new feature of the service.[58] Valve has released the native Mac OS X, OpenGL versions of Left 4 Dead, Left 4 Dead 2, Team Fortress 2, Counter-Strike: Source, Portal, and Half-Life 2 and its episodes following Steam's release.[59] Portal 2, released in 2011, was the first Valve title simultaneously released on both the Windows and Mac versions of Steam.[60]
PlayStation 3
At E3 2010, Newell announced that Steamworks would arrive on the PlayStation 3 with Portal 2. It will provide automatic updates, community support, downloadable content and other unannounced features.[61] Portal 2's PlayStation 3 release saw Steamworks make its debut on consoles. Several features were offered including cross-platform play and instant messaging, Steam Cloud for saved games, and the ability for PS3 owners to download Portal 2 from Steam (Windows and Mac) at no extra cost.[4] Valve's Counter-Strike: Global Offensive will also support Steamworks and cross-platform features on the PlayStation 3, including using keyboard and mouse controls as an alternative to the gamepad.[62] Valve said they "hope to expand upon this foundation with more Steam features and functionality in DLC and future content releases".
Mobile platforms
Valve released an official Steam client for iOS and Android devices in late January 2012, following a short beta period.[63] The application allows players to log into their accounts to browse the storefront, manage their games, and communicate with friends on the Steam community. Newell stated that the application was a strong request from Steam users, and sees it as a means "to make [Steam] richer and more accessible for everyone".[64]
Linux
Steam can be run on most Linux systems using the newest Wine compatibility layer, and most games operate correctly, although some run slowly and some require additional external libraries.[65][66][67]
The gaming industry for several years noted rumors and information pointing to a potential Linux Steam client, though Valve denied working on a Linux version of Steam.[68] On May 12, 2010, The Daily Telegraph claimed that Valve had confirmed that a Linux client was planned to be released "in the coming months", but gave no other details,[69] the claim was then repeated on other websites as hearsay evidence.[70] Following the announcement of Steam for Mac OS X, Linux benchmark and news website Phoronix found Linux-related references in a beta release of the Mac Steam client. This was followed later by the alleged discovery of files for an incomplete Linux client available for download on Valve's own web servers.[71][72] Phoronix's Michael Larabel reported in April 2012 that he had been invited to Valve to offer help in seeking OpenGL Linux developers and that they were working a native Source engine for the platform.[73]
Valve announced in July 2012 that they would port Steam and the Source engine to Linux based on the Ubuntu distribution. The team developing the Linux client had been working for a year prior to the announcement to validate that such a port would be possible.[67] As of the official announcement, a near-feature complete Steam client for Linux had been developed and successfully run on Ubuntu.[67] Not only will Valve's Linux group focus on improving the Steam client but will assure that their selected first Source game, Left 4 Dead 2, will run at acceptable framerates and connectivity with the Windows and Mac OS X versions. From there, they will then work at porting other games and expanding to other Linux distributions.[74][75] On August 1st, the Valve Linux team announced that they had successfully ported Left 4 Dead 2 to Linux.[76] Following Valve's announcement, Devolver Digital announced that it will port Serious Sam 3: BFE with Steamworks support to the Ubuntu Linux platform.[77]
Other platforms
The Xbox 360 does not have support for Steamworks. Newell had indicated that they would like to bring the service to the console through the game Counter-Strike: Global Offensive, which would have allowed them to provide the same feature set that they did for the PlayStation 3,[78] but later affirmed that cross-platform play would not be present in the final version of the game.[79]
Market share and impact
Many major publishers have large catalogs available on Steam, including Bethesda Softworks, Activision, Rockstar Games, Electronic Arts, Square Enix, 2K Games, Namco, LucasArts, Sega and more.
Sales figures for Steam have not been released by Valve. However, Stardock, the previous owner of competing platform Impulse, estimated that, as of 2009, Steam had a 70% share of the digital distribution market for video games.[8] In early 2011, Forbes reported that Steam sales constituted 50 to 70% of the $4 billion market for downloaded PC games and that Steam offered game producers gross margins of 70% of purchase price, compared with 30% at retail.[80] In 2011, Steam served over 780 petabytes of information, double what it had delivered in 2010.[81]
Recettear: An Item Shop's Tale sold more than 140,000 units, which its localization distributor, Carpe Fulgur, attribute in part to Steam and its sales.[82] Magicka sold 30,000 copies on its day of release in January 2011,[83] and went on to sell 200,000 in 17 days.[84] Garry's Mod sold 312,541 in its first two years[85] and reached 1,000,000 after five years[86] with yearly sales growth of 33%.[87]
In November 2011, it was revealed by the developer of The Witcher 2: Assassins of Kings that Steam was responsible for 80% of the online sales of the game.[88]
Bethesda stated that by May 2012, over 13.6 million mods had been downloaded for Skyrim through the Steam Workshop feature of the Steam client, considering the service a success.[89]
History
Beginnings
![](http://upload.wikimedia.org/wikipedia/en/timeline/57tsdvtyxxubxm5psy6uznlg95o37dx.png)
Prior to Steam, Valve had problems releasing updates for their online games, such as Counter-Strike, wherein a patch would result in the disconnection of the larger part of the online user base for several days. They decided to make a platform which would update games automatically, and implement better anti-piracy and anti-cheat measures. Valve originally approached several companies – including Microsoft, Yahoo!, and RealNetworks – to build a client with these features, but all turned them down.[90]
Steam's development began at an uncertain date prior to 2002. Working titles included "Grid" and "Gazelle".[91] It was revealed to the public on 22 March 2002 at the Game Developers Conference, and was presented purely as a distribution network.[92] To demonstrate the ease of integrating Steam to a game, Relic Entertainment had created a special version of Impossible Creatures.[93] The game was ultimately not released on Steam, however.
Valve partnered with a number of companies including AT&T, Acer and GameSpy Industries. The first mod on the system was Day of Defeat.[94][95]
The Steam client was first made available for download in 2002 during the beta period for Counter-Strike 1.6. At that time, its primary function was streamlining the patch process common in online computer games. Installation and use of Steam was mandatory for Counter-Strike 1.6 beta testers, but Steam remained an optional component. 80,000–300,000 gamers tested the system when it was in its beta period.[94][96] The system and web site choked under the strain of thousands of users simultaneously attempting to play the latest version of Counter-Strike.[97] In 2004, the World Opponent Network was shut down and replaced by Steam. The online features of games which required World Opponent Network ceased to work unless they were converted to Steam.
Around this time, Valve began negotiating contracts with several publishers and independent developers to release their products on Steam. Rag Doll Kung Fu and Darwinia are two examples, and Canadian publisher Strategy First announced in December 2005 that it would be partnering with Valve for digital distribution of current and future titles.[98] In 2002, Gabe Newell, the head of Valve, said he was offering mod teams a game engine license and distribution over Steam for $995.[94]
In late 2007, "Steam achievements" were introduced with the launch of The Orange Box, which are rewarded when players complete certain requirements in games. This system is similar to achievements on the Xbox 360 and trophies on the PlayStation 3.
Profitability
In 2005, the first third-party games began to appear on Steam. Valve also announced that Steam was starting to be profitable, if only due to some highly successful Valve games. Although digital distribution was still no match to retail in terms of sales volume, profit margins for Valve and developers were far bigger on Steam than at retail.[99]
In 2007, big developer-publishers such as id Software, Eidos Interactive and Capcom started to distribute their games on Steam. In May 2007, 13 million accounts had been created on Steam, and 150 games were for sale on the platform.[100] In October 2007, the release of The Orange Box, and the distribution of high-profile games such as BioShock, Call of Duty 4: Modern Warfare, and S.T.A.L.K.E.R.: Shadow of Chernobyl, helped increase Steam's popularity.[citation needed]
Steam Translation Server
In March 2010 Valve launched the Steam Translation Server, which is a service that allows Steam users to help in the translation of Steam and a selected library of Steam games. The service was undergoing a closed beta until October 2010. Since then, every Steam user has the ability to apply as a translator. Steam currently supports 25 languages: Bulgarian, Simplified Chinese, Traditional Chinese, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Pirate (a comical, piratical version of English), Polish, Portuguese, Portuguese-Brasil, Romanian, Russian, Spanish, Swedish, Thai and Turkish.
November 2011 hack
On November 6, 2011, Steam temporarily closed the community forums, citing potential hacking threats to the service. Subsequently, on November 10, Valve reported that the hack included a compromise of one of their customer databases, potentially allowing the perpetrators to access customer information including encrypted password and credit card details. At that time, Valve was not aware if the intruders actually accessed this information or discovered the encryption method, but warned users to be alert for fraudulent activity.[101][102]
See also
- List of Steam games
- List of games using Steam authentication
- Games for Windows – Live
- GamersGate
- Origin (content delivery)
- Desura
References
- ^ "Steam Client Released". Valve Corporation. September 12, 2003. Retrieved October 23, 2011.
- ^ "Valve to Deliver Steam & Source on the Mac". Valve Corporation. 8 March 2010. Retrieved 8 March 2010.
- ^ http://blogs.valvesoftware.com/linux/steamd-penguins/
- ^ a b "Portal 2 PS3, Steam cross-platform play". Eurogamer. January 18, 2011.
- ^ "Steam Search". Valve Corporation. Retrieved 2012-01-20.
- ^ "40 Million Active Gamers on Steam Mark". Gaming Bolt. 6 January 2012. Retrieved 7 January 2012.
- ^ "Steam hits five million concurrent players". Retrieved 3 January 2012.
- ^ a b Graft, Kris (November 19, 2009). "Stardock Reveals Impulse, Steam Market Share Estimates". Gamasutra. Retrieved November 21, 2009.
- ^ "Content Server Stats". Valve Corporation. Retrieved November 15, 2008. (click "View individual server statistics")
- ^ "Steam News – European Local Currency Available". Valve Corporation. 2008-12-17. Retrieved 2008-12-18.
- ^ News – WebMoney Now Available on Steam
- ^ "Steamworks – Retail Support". Valve. Retrieved March 4, 2011.
- ^ "Steam offers gamers in-game downloadable content". Valve Corporation. 2009-03-16. Retrieved 2009-03-20.
- ^ "Steam mod hosting announcement". Valve Corporation. Retrieved 2008-10-01.
- ^ Brown, Mark (2011-06-15). "Valve Introduces Free-to-Play Games to Steam". Wired. Retrieved 2011-09-07.
- ^ Cifaldi, Frank (2011-09-06). "Valve's Steam Trading Leaves Beta, Adds Portal 2 Support". Gamasutra. Retrieved 2011-09-07.
- ^ Curtis, Tom (2011-12-07). "Valve Ups Monetization Options With Steam Coupons". Gamasutra. Retrieved 2011-12-07.
- ^ McWhartor, Michael (2012-08-08). "Valve to sell non-gaming software on Steam starting September 5th". The Verge. Retrieved 2012-08-08.
- ^ Miller, Ross (13 September 2007). "Steam Community officially launched". Joystiq. Retrieved 18 January 2010.
- ^ "Steam Realizes Extraordinary Growth in 2009". Valve Corporation. 2010-01-29. Retrieved 29 January 2010.
- ^ "Steam rating". Valve Developer Community. Retrieved November 3, 2007.
- ^ Nunneley, Stepheny (2012-07-12). "Valve launches Steam Badges on the service". VG247. Retrieved 2012-07-12.
- ^ TF2 Team (1 July 2010). "Steam Web APIs". Team Fortress 2 blog. Retrieved 2 July 2010.
{{cite web}}
: Italic or bold markup not allowed in:|work=
(help)CS1 maint: numeric names: authors list (link) - ^ "Steam Web API Documentation". Steam Community. Valve Corporation. Retrieved 2 July 2010.
- ^ Valve Corporation. "Steam Support – Valve Anti-Cheat System (VAC)". Retrieved 18 January 2010.
- ^ Matulef, Jeffrey (2012-08-13). "Steam to highlight the best user-created content". Eurogamer. Retrieved 2012-08-13.
- ^ "Valve Privacy Policy". Valve Corporation. Retrieved 2007-10-25.
- ^ "Valve Hardware Survey". Valve Corporation. Retrieved 2010-07-10.
- ^ "Half-Life 2: Episode One Stats". Valve Corporation. Retrieved 2007-10-25.
- ^ "Wednesday May 31, 2006 – Steam client update released". Valve Corporation. 31 May 2006. Retrieved 2006-10-26.
- ^ "New Software Survey". Valve Corporation. 2010-07-15. Retrieved 3 June 2011.
- ^ Yam, Marcus (2010-02-24). "Valve's Steam Ditches Internet Explorer for WebKit". Tom's Hardware. Retrieved 2011-08-03.
- ^ Benedetti, Winda (2012-08-17). "Valve will put PC games on your TV this fall". MSNBC. Retrieved 2012-08-17.
- ^ "Steamworks FAQ". Valve Corporation. Retrieved March 14, 2020.
- ^ a b "Steamworks Integration Now Available to Unreal Engine 3 Licensees". Epic Games. March 11, 2010.
- ^ a b "Steamworks API Overview". Steamworks partner site. Valve Corporation. May 1, 2008. Retrieved August 1, 2008.
- ^ "Team Fortress 2: the best of the Steam Workshop". PC Gamer. 2011-10-19. Retrieved 2012-02-05.
- ^ Rosenberg, Adam (2012-01-20). "Skyrim Patch v1.4 Coming For All Platforms, PC Mod Tools Not Far Behind". G4TV. Retrieved 2012-01-26.
- ^ Molina, Brett (2012-04-28). "'Portal 2' puzzle creator launches May 8". Gamasutra. Retrieved 2012-05-02.
- ^ Hillier, Brenna (2012-05-03). "Free Dungeons of Dredmor DLC adds Steam Workshop support". VG247. Retrieved 2012-05-03.
- ^ Williams, Katie (2012-06-17). "Dota Workshop Opens". GameSpy. Retrieved 2012-05-20.
- ^ Reimer, Jeremy (2005-09-26). "Microsoft previews online software purchasing with the Digital Locker". Ars Technica. Retrieved 2009-11-16.
- ^ Curtis, Tom (2012-07-09). "Steam Greenlight lets users rally behind the games they want to play". Gamasutra. Retrieved 2012-07-09.
- ^ Narcisse, Evan (2012-06-20). "Valve Gives Away Portal 2 for Free to Teachers with 'Steam for Schools'". Kotaku. Retrieved 2012-06-20.
- ^ Gilbert, Ben (2012-06-20). "'Steam for Schools' is a free version of Steam for students, facilitates Portal 2-based lessons". Joystiq. Retrieved 2012-06-20.
- ^ a b Faylor, Chris (2010-03-08). "Steam Coming to Mac in April, Portal 2 This Fall". Shacknews. Retrieved 2010-03-08.
- ^ "A Brand New Steam". Valve Corporation. February 23, 2010. Retrieved February 24, 2010.
- ^ Leahy, Brian (February 23, 2010). "Valve Launches Public Beta For New Steam UI". Shacknews. Retrieved February 24, 2010.
- ^ "New Steam Client Officially Released!". Valve Corporation. 2010-04-26. Retrieved 26 April 2010.
- ^ Nelson, J.R. (2010-03-07). "Valve All But Confirms Steam and Portal 2 Coming to Mac OS X". Desktop Preview. Retrieved 8 March 2010.
- ^ Slivka, Eric (2010-03-03). "Valve teases upcoming Half life release for Mac". Mac Rumors. Retrieved 8 March 2010.
- ^ Leahy, Brian (2010-05-25). "Half-Life 2 Hits Mac Steam Tomorrow; Teased via Epic Homage Trailer". Shacknews. Retrieved 2010-05-25.
- ^ Citizen, Jessica (2010-04-30). "Steam for Mac on May 12". GamePron. Retrieved 2010-04-30.
- ^ Remo, Chris (2010-04-29). "Valve Dates Steam Mac For May 12, Updates Steam PC". Gamasutra. Retrieved 2010-05-19.
- ^ Faylor, Chris (2010-05-13). "Steam's Cross-Platform PC/Mac Game Availability Explained: Some Must Be Bought Again". Shacknews. Retrieved 2010-05-13.
- ^ Welcome to Steam
- ^ "Steam released for Mac, Portal free until May 24, Linux soon?".
- ^ Chalk, Andy (2010-05-12). "Steam for Mac Sets Portal Free – UPDATED". The Escapist. Retrieved 2010-05-19.
- ^ Kuchera, Ben (2010-05-04). "Steam for Mac: the beta is limited, but the future is bright". Ars Technica. Retrieved 2010-05-19.
- ^ Carolli, Eric (2010-05-12). "Steam Launched For Mac, Portal Offered For Free". Gamasutra. Retrieved 2010-05-19.
- ^ E3 2010: Portal 2, Steamworks PS3-bound in 2011 – News
- ^ Orland, Kyle (2011-08-26). "PS3 Counter-Strike: GO Gets Added Control Options, Cross-Platform Play". Gamasutra. Retrieved 2011-08-26.
- ^ Garrett, Patrick (2012-01-31). "Steam mobile app goes live for all". VG247. Retrieved 2012-01-31.
- ^ Crossley, Rob (2012-01-26). "Valve launches Steam app for iOS and Android". Develop. Retrieved 2012-01-26.
- ^ "Steam under Linux – Valve Developer Community". Developer.valvesoftware.com. 2011-04-22. Retrieved 2011-10-26.
- ^ "Linux + Wine + Steam". Steam Games on Linux. Retrieved 2011-10-26.
- ^ a b c Caoili, Eric (2012-07-17). "Valve throws support behind Linux with Steam, ports". Gamasutra. Retrieved 2012-07-17.
- ^ Paul Miller (2010-08-23). "Valve denies having a Linux version of Steam in the works". Engadget. Retrieved 2010-09-28.
- ^ Steam for Mac goes live Telegraph.co.uk, May 12, 2010
- ^ Katherine Noyes (2010-05-17). "Who Will Show Up to Linux's Steam-Powered Playground?". Linux Insider. Retrieved 2010-08-13.
- ^ Mathews, Lee (2010-04-22). "Steam's new Mac client hints at Linux support". Download Squad. Weblogs, Inc. Retrieved 2010-06-07.
- ^ Steam for Linux next on cards after OS X? SlashGear, May 4, 2010
- ^ Peckham, Matt (2012-04-25). "Steam Native Linux Client Near? Gabe Newell Trashes Windows 8?". Time. Retrieved 2012-04-30.
- ^ "Steam'd Penguins". Valve Corporation. 2012-07-16. Retrieved 2012-07-16.
- ^ Lein, Tracey (2012-07-16). "'Left 4 Dead 2' to be first Valve game on Linux". The Verve. Retrieved 2012-07-16.
- ^ {{cite web | url = http://blogs.valvesoftware.com/linux/faster-zombies/ | title = Faster Zombies! | first = Valve | second = Linux team | date = 2012-08-01 | accessdate = 2012-08-12 | publisher=Valve Corporation
- ^ Hillier, Brenna (2012-07-24). "Serious Sam 3: BFE headed to Steam Ubuntu". VG247. Retrieved 2012-07-24.
- ^ Yin-Poole, Wesley (2011-08-25). "Valve's Gabe Newell – Interview". Eurogamer. Retrieved 2011-09-12.
- ^ Hinkle, David (2012-03-05). "Counter-Strike: Global Offensive loses cross-play". Joystiq. Retrieved 2012-03-06.
- ^ Chiang, Oliver. "The Master of Online Mayhem". Forbes. Retrieved 14 February 2011.
- ^ Periera, Chris (2012-01-06). "Steam Experiences Another Year of Sales Growth in 2011". 1UP.com. Retrieved 2012-02-02.
- ^ Meer, Alec (2011-01-17). "Post Mortem: Recettear". Rock, Paper, Shotgun. Retrieved 2011-01-17.
- ^ "Magicka Charms its Way to the Top of Steam". Paradox Interactive. Retrieved 26 January 2011.
- ^ "Interview: Magicka's producer talks about reaching the 200,000 sales mark and more". BigDownload.com. Retrieved 11 February 2011.
- ^ Newman, Garry. "GMod10 is 2 years old today!". Retrieved 29 November 2008.
- ^ Newman, Garry (July 26, 2011). "Over 1,000,000 sold!". Retrieved 29 August 2011.
- ^ Newman, Garry. "Garry's Mod Yearly Sales". Retrieved 9 January 2011.
- ^ "Steam Sells 4 Times More Witcher 2 Copies Than All Competitors Combined". GamePro. Archived from the original on 2011-12-01. Retrieved 2011-11-13.
- ^ Yin-Poole, Wesley (2012-05-03). "Skyrim Steam mods hugely successful". Eurogamer. Retrieved 2012-05-03.
- ^ Lee, James. "The Last of the Independents?". GamesIndustry.biz. Retrieved 2010-07-09.
- ^ "Steam Registers 13 million Active Accounts". Retrieved 2007-12-08.
- ^ "GDC 2002: Valve unveils Steam". GameSpot.com. 22 March 2002. Retrieved 7 September 2006.
- ^ Walker, Trey. "GDC: Steam pushes software over Net". ZDNet. Retrieved 2010-07-09.
- ^ a b c James, Wagner (2002-04-16). "Triumph of the mod – Salon.com". Dir.salon.com. Retrieved 2009-11-16.
- ^ "A small games startup is gunning for big publishers". Redherring.com. 2002-05-05. Retrieved 2009-11-16.
- ^ "Steam Powered – Broadband distribution system to go live – dslreports.com". Broadbandreports.com. Retrieved 2009-11-16.
- ^ "Losing Steam – Broadband distribution's rocky road – dslreports.com". Broadbandreports.com. Retrieved 2009-11-16.
- ^ "Strategy First to Deliver Multiple Titles On-Line via Steam" (Press release). Strategy First. 2005-12-08. Retrieved 2010-07-09.
- ^ "Digital distribution: Keep the money and run?". The Hollywood Reporter. 13 June 2005. Archived from the original on 14 June 2005. Retrieved 31 January 2010.
Valve won't talk about how many units it's sold through Steam, but Lombardi describes the venture as being "extremely successful. Even though the lion's share of our sales is still at retail, the digital units are wildly more profitable for us."
- ^ "Steam Surpasses 13 Million Accounts". Valve Corporation. Retrieved 31 January 2010.
- ^ Johnson, Casey (11-10-2011). "Valve confirms Steam hack: credit cards, personal info may be stolen". Ars Technica. Retrieved 11-10-2011.
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(help) - ^ Leyden, John (11-09-2011). "Steam games forum down amid hack fears". The Register. Retrieved 11-10-2011.
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External links
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- Official website
- Steamworks – Steamworks information
- The Steam Community – web access to Steam's social network
- Valve Developer Community/Steam – Steam category on the official VDC wiki